Measurement of output driver impedance for signal integrity design consideration

Measurement of output driver impedance for signal integrity design consideration

Impedance matching is crucial in high-speed digital design to ensure signal integrity (SI). Accurate information of a...

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Bibliographic Details
Main Authors:	Chang, Richard Weng Yew, See, Kye Yak, Soh, Wei-Shan, Oswal, Manish, Wang, Lin Biao
Other Authors:	School of Electrical and Electronic Engineering
Format:	Conference or Workshop Item
Language:	English
Published:	2010
Subjects:	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
Online Access:	https://hdl.handle.net/10356/98491 http://hdl.handle.net/10220/6391
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Institution:	Nanyang Technological University
Language:	English

Description
Summary:	Impedance matching is crucial in high-speed digital design to ensure signal integrity (SI). Accurate information of a device’s output impedance allows precise selection of series resistor to match the device’s output to the characteristic impedance of the connecting trace. This paper proposes an incircuit measurement technique using two current probes to extract the output impedance information of an active device under its normal operating conditions. The measured impedance has been validated with the time-domain simulation results obtained from CST Design Studio.